Rear rotor effective area - Kawasaki Versys Forum
Versys-X 300 General Discussion Please post any 2017+ Kawasaki Versys-X 300 related topics that DO NOT fit into any of the other topics here.

  • 1 Post By whisperquiet
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post #1 of 5 (permalink) Old 08-12-2018, 07:17 AM Thread Starter
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 26
Rear rotor effective area

Dear all

Since I am in the break-in period, I am constantly monitoring things. I noticed the pattern on the pictures. The rear pad is actually using only a portion of the rotor area. I believe you can see it in the pictures where the color of the rotor changes where the pad is touching. Has anybody else noticed this? Why would the pads only use a portion of the rotor? Why have all that extra weight of a larger rotor since the pads are not going to be using the whole area? If I want to change pad manufacturer when I replace the pads would I be able to? What if the new pads are wider and touch only the inner section during break-in?

Any ideas?
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File Type: jpg 2018-08-12 14.38.18.jpg (34.5 KB, 39 views)
File Type: jpg 2018-08-12 14.38.35.jpg (29.4 KB, 36 views)

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post #2 of 5 (permalink) Old 08-12-2018, 09:32 AM
whisperquiet's Avatar
Join Date: Nov 2017
Location: Near St. Louis, MO
Posts: 103
The rotor swept area looks normal and I doubt that new pads would increase the area. Replacement aftermarket pads will be the exact same size to fit in the caliper.

Mine is the same. My Super Tenere uses a little more of the discs.
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Last edited by whisperquiet; 08-12-2018 at 09:37 AM.
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post #3 of 5 (permalink) Old 08-12-2018, 09:37 AM
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Join Date: Jun 2017
Posts: 142
A larger rotor cools better and heats up slower....your contact area looks fine.....the rear brake provides very little of the braking force anyway , I wouldn't worry to much about it

2016 green V1K
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post #4 of 5 (permalink) Old 08-12-2018, 12:21 PM Thread Starter
Join Date: Mar 2009
Location: Thessaloniki, Greece
Posts: 26
Never had a bike where the pad missed so much of the rotor, front or rear.

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post #5 of 5 (permalink) Old 08-17-2018, 06:39 AM
Join Date: Aug 2018
Posts: 39
I never paid attention to it. It does seem to cover very little of the whole area, but most of the braking comes from the front. Plus I have never really liked the pedal feel of the rear brake on the Versys. is offline  
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